引用本文:
Hong Wei LIU, Ge Xia QU, Xin Sheng YAO. A New Furostanol Saponin from Dioscorea futshauensis[J]. Chinese Chemical Letters,
2002, 13(3): 241-244.
Citation: Hong Wei LIU, Ge Xia QU, Xin Sheng YAO. A New Furostanol Saponin from Dioscorea futshauensis[J]. Chinese Chemical Letters, 2002, 13(3): 241-244.
Citation: Hong Wei LIU, Ge Xia QU, Xin Sheng YAO. A New Furostanol Saponin from Dioscorea futshauensis[J]. Chinese Chemical Letters, 2002, 13(3): 241-244.
A New Furostanol Saponin from Dioscorea futshauensis
摘要:
A new furostanol saponin presenting moderate bioactivity of inducing morphological deformation of Pyricularia oryzae mycelia was isolated from Dioscorea futshauensis R.Kunth by bioactivity-guided fractionation. The structure was established as 26-O-β-D-glucopyranosyl-3β, 26-diol-23(S)-methoxyl-(25R)-furost-5,20 (22)-diene-3-O-[α-L-rhamnopyranosyl (1→2)-b-D-glucopyranosyl (1→3)]-β-D-glucopyranoside on the basis of chemical evidencesand spectral analysis, especially by 2D-NMR techniques.
English
A New Furostanol Saponin from Dioscorea futshauensis
Abstract:
A new furostanol saponin presenting moderate bioactivity of inducing morphological deformation of Pyricularia oryzae mycelia was isolated from Dioscorea futshauensis R.Kunth by bioactivity-guided fractionation. The structure was established as 26-O-β-D-glucopyranosyl-3β, 26-diol-23(S)-methoxyl-(25R)-furost-5,20 (22)-diene-3-O-[α-L-rhamnopyranosyl (1→2)-b-D-glucopyranosyl (1→3)]-β-D-glucopyranoside on the basis of chemical evidencesand spectral analysis, especially by 2D-NMR techniques.
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Key words:
- Furostanol glycoside
- / Dioscorea futshauensis
- / Pyricularia oryzae
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